Home / 15,854.78-21,884.10-9,567.56

Finding the Fourth Proportional to 15,854.78, 21,884.10 and 9,567.56

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Solution

The fourth proportional to 15,854.78, 21,884.10 and 9,567.56 is: 13,205.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,854.78 : 21,884.10 = 9,567.56 : x
  2. Step 2: Convert to fraction form
    15,854.78/21,884.10 = 9,567.56/x
  3. Step 3: Cross multiply
    15,854.78x = 21,884.10 × 9,567.56
  4. Step 4: Simplify right side
    15,854.78x = 209,377,439.80
  5. Step 5: Solve for x
    x = 209,377,439.80/15,854.78
  6. Step 6: Final answer
    x = 13,205.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.